Mahoney was commissioned to produce a mural scheme for the Lady Chapel
at Campion Hall in 1941. The scheme was to be made up primarily of
three large panels: the Nativity and Adoration of the Shepherds, the
Coronation of the Virgin, and Our Lady of Mercy. In detail and
composition the paintings owe much to early Italian example. Electing to paint
directly onto canvas fixed to the walls and by daylight hours only, the
project inevitably became drawn out and Mahoney could only work in situ
during the Easter and summer vacations when he was not teaching. The
project continued into the following decade and coincided with a
serious decline in the artist's physical health. In spite of these
problems, Sir John Rothenstein, who chose to reproduce one of the
murals as a plate in British Art since 1900 (1962, pl.60), was moved to
describe the scheme as as second ...only to that by Stanley Spencer at Burghclere.